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Simples IRS Free calculator

Your deadlines, on one timeline

Social Security, IRS and VAT for people on recibos verdes. Weekends and public holidays are already taken into account. Checked on 11 November 2026

20Nov 2026

Next deadline

Pay your Social Security contribution

Payment between the 10th and the 20th, for October.

How to do it
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Subscribe and forget

Add the deadlines to your phone calendar once. If a date changes, your calendar updates itself. It includes Social Security, IRS and quarterly VAT for this year and next. Each deadline comes with two reminders: 3 days before and on the day itself, at 9:00.

Subscribe (updates itself)

Calendar address: https://simplesirs.pt/calendario/prazos-en.ics

iPhone

Tap Subscribe (updates itself) and follow the steps on screen. You can also go to the Calendar app, open the list of calendars and tap “Add Calendar” › “Add Subscription Calendar”. Paste the address above and tap “Find”.

Android

The Google Calendar app does not subscribe to calendars by address. Subscribe in Google Calendar on a computer, with the same Google account as your phone (see the Google Calendar steps). The calendar will then also appear on your phone.

Google Calendar (computer)

On the left, next to “Other calendars”, click “Add other calendars” (+) › “From URL”. Paste the address above, which starts with https://, and click “Add calendar”.

The subscription includes Social Security, IRS and the quarterly VAT return and payment deadlines. If you are exempt from VAT, ignore the events marked “only if you are not exempt”. The filters on this page only change what you see and the Add to my calendar file, not the subscription.

Some apps ignore reminders from subscribed calendars or turn them off by default: if you are not reminded, check that calendar’s settings in the app. Always confirm the dates on the Portal das Finanças and on Segurança Social Direta.

How to get the deadlines onto your phone

Would you rather read everything on one page? See the tax deadlines guide.

Press Add to my calendar and open the file you downloaded (it ends in .ics): on iPhone and Android it opens directly; in Google Calendar use Settings › Import; in Outlook, drag the file in. Each deadline comes with a reminder 3 days before.

Official sources

Every figure on this page comes from these sources (official documents, in Portuguese). Checked on 11 November 2026

How to meet each deadline

Would you rather read it all on one page?

The deadlines guide explains each date, and the calculator tells you how much to set aside for each one.